"When we're 30, I want you to marry me. Promise?" "Promise." "If we're still single in 15 years, you have to keep your promise." "Fine." "What're you supposed to say~?" "Ugh..I promise." I didn't think that those 15 years would fly by. Now he's back in my life and I have to keep my promise. Who knew I'd end up marrying him. This is a short story that I'm submitting to a writing competition on Google+. Prompt: Two teen lovers meet after 15 years of separation